Home / 239,139.72-330,006.06-130,241.59

Finding the Fourth Proportional to 239,139.72, 330,006.06 and 130,241.59

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Solution

The fourth proportional to 239,139.72, 330,006.06 and 130,241.59 is: 179,729.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,139.72 : 330,006.06 = 130,241.59 : x
  2. Step 2: Convert to fraction form
    239,139.72/330,006.06 = 130,241.59/x
  3. Step 3: Cross multiply
    239,139.72x = 330,006.06 × 130,241.59
  4. Step 4: Simplify right side
    239,139.72x = 42,980,513,139.02
  5. Step 5: Solve for x
    x = 42,980,513,139.02/239,139.72
  6. Step 6: Final answer
    x = 179,729.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.